The designs by Snøhetta for the renovation of the building at 550 Madison Avenue have launched the building to the forefront of the debate about the preservation of Postmodern heritage. The plans include replacing the stone facade with undulating glass in order to transform the building's street presence. Should plans progress, the once prominent arched entry will sit behind fritted glass and stone covered columns will be unwrapped to create a hovering datum.

Architects like Stern and design advocates like Liz Waytkus, the executive director of the nonprofit preservationist group Docmomo US, are fighting for awareness about a new crop of Postmodern buildings that are now old enough to warrant renovations, but often not quite considered old enough to be declared historically significant.

Watch the film by Metropolis Magazinehere to find out more about this critical moment for architectural preservation.